Claude Code introduces experimental Code Mode
Version 2.1.323 adds an opt-in mode where Claude writes JavaScript to call its tools.
What changed
The release also fixes a memory spike after very large file edits, interrupted-message handling and several session reliability issues.
Why it matters
Tool orchestration is becoming programmable, while the memory fix addresses a practical problem in long development sessions.
Anthropic release notes
Announcement published November 12, 2026. This briefing is an original summary of the linked reporting or announcement.
Read the original